Selenanthrene
硒士林, 9,10-二硒杂萘
🗣️ 情景例句
What about the salary?
薪水怎么样？
I need it for the parking meter.
我需要零钱投停车记时器。
The woodcutter replied: I'm going to cut this tree down.
伐木工人回答说：“我要把这棵树砍倒。”